| Eddie Cai | a04385d | 2017-12-15 08:17:12 +0800 | [diff] [blame] | 1 | Rockusb (Rockchip USB protocol) |
| 2 | ===================================================== |
| 3 | |
| 4 | Overview |
| 5 | -------- |
| 6 | |
| 7 | Rockusb protocol is widely used by Rockchip SoC based devices. It can |
| 8 | read/write info, image to/from devices. This document briefly describes how to |
| 9 | use Rockusb for upgrading firmware (e.g. kernel, u-boot, rootfs, etc.). |
| 10 | |
| 11 | Tools |
| 12 | -------- |
| 13 | There are many tools can support Rockusb protocol. rkdeveloptool |
| 14 | (https://github.com/rockchip-linux/rkdeveloptool) is open source, |
| 15 | It is maintained by Rockchip. People don't want to build from source |
| 16 | can download from here |
| 17 | (https://github.com/rockchip-linux/rkbin/blob/master/tools/rkdeveloptool) |
| 18 | |
| 19 | Usage |
| 20 | -------- |
| 21 | The Usage of Rockusb command is: |
| 22 | |
| 23 | rockusb <USB_controller> <devtype> <dev[:part]> |
| 24 | |
| 25 | e.g. rockusb 0 mmc 0 |
| 26 | |
| 27 | On your U-Boot console, type this command to enter rockusb mode. |
| 28 | On your host PC. use lsusb command. you should see a usb device |
| 29 | using 0x2207 as its USB verdor id. |
| 30 | |
| 31 | for more detail about the rkdeveloptool. please read the usage. |
| 32 | |
| 33 | rkdeveloptool -h |
| 34 | |
| 35 | use rkdeveloptool wl command to write lba. BeginSec is the lba on device |
| 36 | you want to write. |
| 37 | |
| 38 | sudo rkdeveloptool wl <BeginSec> <File> |
| 39 | |
| 40 | to flash U-Boot image use below command. U-Boot binary is made by mkimage. |
| 41 | see doc/README.rockchip for more detail about how to get U-Boot binary. |
| 42 | |
| 43 | sudo rkdeveloptool wl 64 <U-Boot binary> |
| 44 | |
| 45 | There are plenty of Rockusb command. but wl(write lba) and |
| 46 | rd(reboot) command. These two command can let people flash |
| 47 | image to device. |
| 48 | |
| 49 | To do |
| 50 | ----- |
| 51 | * Fully support Rockusb protocol |